An controversial Cursed Awesome landmark, The Crimson Sea is a lake of water in the nether situated between the Green and Cyan nether hubs. This landmark (watermark?) was created October 17th, 2020, during The Flooding. The Crimson Sea had it’s size reduced not long after its creation, but what remains is sure to stay.
The Crimson Sea in its current state (Photo credits to Chief_Volts, enhancement done by MantacidTech)